Christians: What would compel you to walk out of a Church service?

I walked out of a service in 1980 when the preacher decided to preach about me! He beat around the bush for about 15 minutes, but as soon as he got to his topic, I made a ceremony out of walking out on him. He said, "It's too bad the person who needs to hear this won't be here." But he was wrong: Nobody needed to hear that... he was completely wrong in what he was saying.